Means for applying metal ferrules to fiber containers



June 27, 1939. c. T. WALTER 2,163,926

MEANS FOR APPLYING METAL FERRULES TO FIBER CONTAINERS Original Filed May29, 19256 3 s s 1 .MLL I v IIIIIIIIHIIH liml 1| I 1 vlfl [2 .5 du /a4 WmEnnentor WIT (1S5:

June 27, 1939. c. T. WALTER 2,163,926

MEANS FOR APPLYING METAL FERRULES TO FIBER CONTAINEkS I Original FiledMay 29, 1936 3 She ets- Sheet 2 7 Y CM 7 ww' Zflwentor n ss: v FM'M 27,1939. c W T R 2,163,926

MEANS FOR APPLYING METAL FERRULES T0 FIBER CONTAINERS Original Filed May29, 1936 3 Sheets-Sheet 3 Gttorneg 3nnentor Patented June 27, 1939UNITED sTATss gleam smarts roa ammo mar. manners 'ro ma mass 1 CONTCharles'l. Walter. 111 mino c Patents dnstrial corporation of DelaOriginal 8%.433.

Corporation, Chicago. i

ware

application May '29, 1936,- Serial No.

Divided and this app cation February 2:, 19:1, SerialNo. 121.25;

roam. (qt 153-1) This invention relates in means for applying metalferrules to fiber containers.

This application is a division of copending application Serial No.82,433; flled May 29, 1938, 5 entitled Paper can. One of the objectsofthe'invention is to provide animproved means for applying metalferrules to flber containers.

Other objects of the invention will be apparent 10 from the descriptionand claim which follow.

- In the drawings similar referenccscharacters in the several flguresdesignate similar Figure-i is a plan view of a metallic strip formedinto a circle. Figure 2 is aside view of the metallicfstrip shown-in Fiure 1.

Figure 3 is a plan view of the Mid strip shown in the previous figuresafter it has 20" Fi ure 4 is a sectional view on line H of .Eigure 3.

d1Figure 5 isa sectional view of acupped fiber 5c.

' paper cans.

Figure 'lis a' sectional view showings cupped discinthepontioninwhichitisfed-toanopen f Figure ii is a vlewQpartIy inisection,

the feeding of a metallic ringto the station of the assembling machine.

Figure 9 is a side view; partly in section, show- .ing'aring inpositioiron a chuck above a can Figure 10 is a side may, partly insectionhhoh ing a cupped disc in. metallic ringin position with r spectt the can-bodygpreparatory to 40 Figurellisasectionalviewofaseamingchuckferrule involved in this invention. r 12is-a sectional view-of amodified type of seamingchuck employed in lying a modill fled form of,ferrule omittingtheinner peripheral employed inseaming a containeremploying'the Theferrule implored inventionispreparedfmanarrowstripoftinplate;

' a flatdisc portion upwardly extending walls I and flange I. The mannerof automatically assembling paper Figure6 isaticpianviewofama-' Iiichine arrangement for automatically assembling 'and to facilitateflanging the lock seam termi- 'nates somewhat short of the edges 3 and4. The

ferrule l is first bent as shown in Figures 3 and 4 to form outwardlyextending flange 5 and 1hflange 5 provides metal for crimping over thecan body. inwardly turned flange 8 provides depth control for themetallic ferrule with respect to the seaming chuck and forms a flatguide sur- 10 face to permit adjacent covers to rest and slide 1 uponeach other in the cover feeding mechanism.

Figure 5illust1-ates' a cupped'flber disc having calls is shown inFigure 6 in which framework or turret ll rotates about shaft Ii in thedirection of the arrows. Turret i0 carries-a number oicanstatiomii.Eachstationcomprises It alower rotatably mounted can-body supportingtable it and a rotatably mounted seaming chuck it as is moreparticularly shown in Figures 8, 9

Tubular fiber can bodies II are delivered to the SI machinebyconveyoriisothataseachstation i2 theconveyor input it picks up an open can bodyIi. Adjacent to the can body feed conveyo'.

ii and positioned above it 'is a ferrule feeding conveyor II arrangedwith respectto the seaming chucks M as shown in Figure ii. The conveyori1 and shuttle II are of the conventional-type. As each station passesring shuttle It, chuck ilpicksup a metallicring i asshown-inFigure 8inwhichring i isshowiirestingonshuttle um; as

sloping position with ttotheplane of motion of chuck ll. The shuttle llisflexible so as to permit ring Ito be readilywithdrawn by chuck 14.Ring i is shown in position on chuck it in V Figure .9. 'Adjacent toconveyor I1 is a second l0 feeding conveyor 2. which servesto delivercupped iiber discs 2! to the chuck. Conveyor I! is alsoequipped with anautomatic feeding device at I2. Both feeding devices I! and 2! feedtheir 'respective objects from a stackarranged with objects stacked inpiles with the flanges of each pileincontact.

Conveyor II is equipped with shuttle 28. The arrangement of conveyorsand sloping shuttles shown in Figure 6 is conventional. As each seam-' 0ing station moves from conveyor I! to conveyor 2i, seaming chuck itcarries with it a metallic ring i. M shuttle is each station picks up .acuppedpaper disc 2| as indicated in Figure '7. The seaming chucknowholds a metallic ring as iunder which is placed a cupped disc 2|. Thesetwo obiects are now in a position to be placed into the can bodypreparatory to seaming, which operation is illustrated in Figure 11, atwhich station the outer flange I is crimped over the outer edge of thecan Figure 11 shows a seaming chuck having a seaming roll 24 of typicalcross section. Seaming roll 24 has a conical surface 28 which extends toa point closer the center of rotation of can body I than edge 20 of theseaming chuck It. Extended conical surface 26 engages the straightsurface 01 outward flange 5 before it is crimped to cause it topositively assume a concave curvature downwardly. It will be clear,therefore, that the thickness of surface 28 can not be substantiallyrelatively greater than shown in Figure 11. Therefore, in order tocontrol the depth at which chuck II can enter ring i and at the sametime exert a downward pressure between tremity 28 designed' to engagethe correspondingly curved surface of ring I insucha manner as to exerta downward force between the can cover and the can body and yet at thesame time clear the conical extension ll 0! the seaming chuck.

I claim:

In a can seaming device for applying a cupped fibrous end to a fibroustubular body by means of a metallic ferrule, the ferrule comprising avertical wall adapted to flt within the cupped fibrous end and a flangedwall bent outwardly from the vertical wall, the flanged wall beingadapted to extend above the end edges of the cupped end and tubular bodyand beyond the outer wall of the tubular body to provide a portionadapted for crimping to the outer wall of the tubular body, the edgejoining the vertical 'wall with the flanged wall providing a curvedouter surface, the combination of a seaming chuck adapted to engage theinner surface of the ver- ,tical wall and provided with an outwardlycurved upper peripheral surface designed to engage the curved edgejoining the vertical wall with the flanged wall and to press the fermleand fibrous end within the end of the tubular body, and *a seamingroll'rotatably mounted in operative relation with the seeming chuckprovided with an extended conical surface, adjacent its upper peripheraledge, the conical surface being operable to engage the portion of theflanged wall extended beyond the tubular body to caused; to assume aconcave curvature downwardly before crimping to the outer wall ofthetubnlar body and simultaneously to engage the portion of the flangedwall extended above the end edges of the cupped end and tubular body toprevent upper bowing of the last-mentioned portion of the flanged wellduring the crimping operation.

CHARLE '1'. WALTER.

